* misc/tst-sbrk.c: New file.

	* misc/tst-sbrk-pie.c: Likewise.
	* misc/tst-sbrk-static.c: Likewise.
	* misc/Makefile (tests): Add tst-sbrk, tst-sbrk-pie, tst-sbrk-static.
	(tests-pie): Add tst-sbrk-pie.
	(tests-static): Add tst-sbrk-static.

4 files changed, 59 insertions, 0 deletions

diff --git a/misc/Makefile b/misc/Makefile
index 4cb7f24e6c..b109d4e3d0 100644
--- a/misc/Makefile
+++ b/misc/Makefile
@@ -97,6 +97,10 @@ CFLAGS-getusershell.c = -fexceptions
 CFLAGS-err.c = -fexceptions
 CFLAGS-tst-tsearch.c = $(stack-align-test-flags)
 
+tests += tst-sbrk tst-sbrk-pie tst-sbrk-static
+tests-pie += tst-sbrk-pie
+tests-static += tst-sbrk-static
+
 include ../Rules
 
 $(objpfx)libbsd-compat.a: $(dep-dummy-lib); $(make-dummy-lib)
diff --git a/misc/tst-sbrk-pie.c b/misc/tst-sbrk-pie.c
new file mode 100644
index 0000000000..3896b9699e
--- /dev/null
+++ b/misc/tst-sbrk-pie.c
@@ -0,0 +1,3 @@
+/* Test sbrk with -pie.  */
+
+#include <tst-sbrk.c>
diff --git a/misc/tst-sbrk-static.c b/misc/tst-sbrk-static.c
new file mode 100644
index 0000000000..fef52718cd
--- /dev/null
+++ b/misc/tst-sbrk-static.c
@@ -0,0 +1,3 @@
+/* Test sbrk with -static.  */
+
+#include <tst-sbrk.c>
diff --git a/misc/tst-sbrk.c b/misc/tst-sbrk.c
new file mode 100644
index 0000000000..4118635ef4
--- /dev/null
+++ b/misc/tst-sbrk.c
@@ -0,0 +1,49 @@
+/* Test sbrk.
+
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <stdio.h>
+#include <unistd.h>
+
+static int
+do_test (void)
+{
+  /* Try to advance the program break by 1 MiB.  */
+  void *one_mib = sbrk (1 * 1024 * 1024);
+  if (one_mib == (void *) -1)
+    {
+      if (errno != ENOMEM)
+        printf ("sbrk (1 MiB) failed, and with wrong errno: %m\n");
+      else
+        printf ("sbrk (1 MiB) failed\n");
+
+      return 1;
+    }
+  else
+    printf ("sbrk at %p\n", one_mib);
+
+  return 0;
+}
+
+/* TODO: fix rlimit bug.  64 MiB (test-skeleton.c's default) should be
+   enough.  */
+#define TEST_DATA_LIMIT RLIM_INFINITY
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"